/Engine/Source/Developer/TraceServices/Public/TraceServices/Containers/Timelines.h
typedef [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< [EEventEnumerate](API\Developer\TraceServices\TraceServices\Containers\TraceServices__E-_2)(bool, double, const [EventType](API\Developer\TraceServices\TraceServices\Containers\ITimeline\EventType) &)> EventCallback